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Sidelight, break light, turn signal. You can use a test meter to identify.
What is the color code for trailer wiring?
On a 4-Way flat trailer wiring harness, white is the ground, brown is running lights, yellow is left turn signal and green is right turn signal.
Hello Dewey, I can think of three reasons that could cause your problem. The truck pigtail is improperly wired, the trailer pigtail is improperly wired, or the trailer wires are contacting each other that they shouldn't.
is trailer lite fixture grounded good try and wiggle fixture when u hit signal. next try wiggle pig tail on trailer , still no signal. it must be wire from truck, trace back to connection and check all splices. to see if signal light works on trailer unhook pigtail and get a battery charger or another battery, connect a jumper from positive side to signal spot on trailer hook up. hook up ground as well see if light works if not its in the truck for sure.
what are you asking? how do you get the lights to hook up to the back of your truck? you may need a pigtail connector to hook the trailer up and have it work properly.
Here is a page online that has wiring for the 7 pin coupler. http://rvbasics.com/techtips/rv-travel-trailer-plug-wiring.html
Notice that the battery charge for the trailer is on pin 4 black...
Hope this helps you with your hookups.
K
You'll need to disconnect the wires from either the truck connector or the trailer connector... I highly suggest purchasing a voltage checker- it looks like a screwdriver with a pigtail of wire with an alligator clip on the end. The tip of the 'screwdriver' has a point for probing. The light in the probe will light up...makes it easy to trouble shoot without a helper behind the trailer. Hook the aligator clip to a good positive grounding point on the bumper or frame(not painted). then pin by pin on the truck connection, stick the probe on each terminal tab.. and write a simple diagram where you find brake, tail, backup, etc... Then i'd suggest, taking the connector off of your trailer, exposing the wire ends. Run again thru your diagram and turn on each light of the truck. As you do, touch the wires from the trailer to that specific terminal. (make sure your ground wire is attached on the trailer) you can mark each wire with a piece of tape and label it which is which. then simply attach your trailer wires according to your diagram to the terminals in the connector... that should get you in business.. hope that makes sense... That way if the factory wiring harness remains the same, you'll be able to use it with other trailers if the need arises..
you can go into an auto zone and on the package is a diagram, they will usually let you write the info you need.
what wire is showing, i know yellow and green are turn and white ground and brown are running lights. so you will get no power to the white but it has to be grounded, or no lights either, sometimes the connections go bad. truck side and trailer side.
also there is a quick connect for your truck if it is the 150, so much easier and not tracking wires down
It does not take long for a connection to co bad, my race trailer had a little deamon in it, had to rewire the thing about 3 to 4 times a year, all new stuff, it just hated the trailer
It's printed on the package when you buy the connector. Also just start browsing the web, there is a million trailer and towing sites with this info.
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